.layout-wrap{
  height: 100vh;
}
.layout-header{
  // position: relative;
  z-index: 2;
  height: 75px;
  background-color: #fff;
  @include webkit(box-shadow,0 3px 16px 0 rgba(0,0,0,.1));
  @include flexBox();
  @include flexAlign(center);
  @include flexJust(space-between);

}
.layout-main{
  border: 30px solid #f7f7f7;
  background-color: #fff;
  padding: 30px;
}
.collapsed-btn{
  margin-left: -30px;
}